December weather forecastRawson, CT

December

Weather in December

The first month of the winter, December, is also an icy month in Rawson, Connecticut, with temperature in the range of an average high of 39.2°F (4°C) and an average low of 28.2°F (-2.1°C).

Temperature

The average high-temperature drops in December, from November's frosty 49.1°F (9.5°C) to a wintry 39.2°F (4°C). In the month of December, Rawson witnesses a consistent average low-temperature of 28.2°F (-2.1°C).

Humidity

In Rawson, the average relative humidity in December is 78%.

Rainfall

In Rawson, during December, the rain falls for 8.3 days and regularly aggregates up to 0.98" (25mm) of precipitation. In Rawson, during the entire year, the rain falls for 112.3 days and collects up to 9.33" (237mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall in Rawson. In December, it is snowing for 4.1 days. Throughout December, 0.63" (16mm) of snow is accumulated. Throughout the year, there are 21.5 snowfall days, and 3.15" (80mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 12min of daylight.
On the first day of December, sunrise is at 6:56 am and sunset at 4:18 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:27 pm EST.

Sunshine

The month with the least sunshine is December, with an average of 4.7h of sunshine.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.

Frequently asked questions

The average high-temperature, in December, in Rawson, is 39.2°F (4°C), while the average low-temperature is 28.2°F (-2.1°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 87.8°F (31°C).

The average relative humidity in December is 78%.

In Rawson, during December, the rain falls for 8.3 days and regularly aggregates up to 0.98" (25mm) of precipitation.

In Rawson, in December, during 4.1 snowfall days, 0.63" (16mm) of snow is typically accumulated.

December has the shortest days of the year in Rawson, with an average of 9h and 12min of daylight.

In December, the average day length is 9h and 12min.

On the first day of December, sunrise is at 6:56 am and sunset at 4:18 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:27 pm EST.

The month with the least sunshine is December, with an average of 4.7h of sunshine.

In Rawson, the average sunshine duration in December is 4.7h.

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Rawson, CT

  • Average high temperature in December: 39.2°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in December: 28.2°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

Average pressure in December
Rawson, CT

  • Average pressure in December: 30.05"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Rawson, CT

  • Average wind speed in December: 8.4mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in December
Rawson, CT

  • Average humidity in December: 78%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (72%).

Average rainfall in December
Rawson, CT

  • Average rainfall in December: 0.98"

The wettest month (with the highest rainfall) is July (1.14").
The driest month (with the least rainfall) is September (0.39").

Average rainfall days in December
Rawson, CT

  • Average rainfall days in December: 8.3 days

The month with the highest number of rainy days is July (13.4 days).
The month with the least rainy days is January (5.6 days).

Average snowfall in December
Rawson, CT

  • Average snowfall in December: 0.63"

The month with the highest snowfall is March (0.94").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Rawson, CT

  • Average snowfall days in December: 4.1 days

The month with the highest number of snowfall days is February (5.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Rawson, CT

  • Average daylight in December: 9h and 12min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 4h and 42min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

Average sunshine days in December
Rawson, CT

  • Average sunshine days in December: 19.2 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (14.9 days).

Average UV index in December
Rawson, CT

  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in December
Rawson, CT

  • Average cloud cover in December: 48

The months with the most cloud cover are February, March, May and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in December
Rawson, CT

  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).